1. Mira-S 2. Features 1. Mechanism of Mira-S
A kind of texturized Polyester yarn which differs from other polyester yarns by virtue of a chemically
modified raw material.
- Inherently elastic yarn by changing micro-structure of polyester to be more elastic
- Incorporate an elastomeric component into fiber
- Stretch & recovery is much better than so called ‘mechanical stretch polyester yarn’,
of which higher crimp is achieved by excessive friction and heat setting.
- It has an enhanced stretch performance compared to normal chemical fibers like polyamide, polyester
Spandex > Mira-S > Mechanical stretch polyester > nylon 6, 66 > polyester
2. Features
▶ Excellent stretch & recovery
▶ Soft Touch : no need for companion fibers unlike spandex.
▶ Excellent light fastness than spandex products (suitable for outdoor application)
▶ Excellent Dyeing Properties, can be dyed darker than normal yarn (better print quality)
▶ Easy-set properties
▶ High chemical-resistance ex. chlorine, solvent
▶ Easy care properties

2. Appearance in after dyeing & finishing
Mira-S
Micro structure
Crimp shape
Appearance in after dyeing & finishing
Polyester
Mira-S .
Superior elasticity and softness caused by its spiral conformation and mobility of molecular chains.
Rich volume by 3 dimensional crimp shape

3. Mira-S Stretch & Recovery
Trapeze Plus®(90% Wale / 45% Course) .vs. Acrobat ® with Mira S (40% / 30%)
Same recovery in wale direction compared to Trapeze Plus ® , approx. 6% less in course direction (95 vs 89%)
Acrobat® with
Mira-S White
Mira-S Black
Trapeze Plus®
Stretch (Wale)
40%
90%
Stretch (Course)
30%
45%
Recovery (Wale)
95%
Recovery (Course)
89%

4. Mira-S Light fastness (ISO 105 B02 : 2013, Xenon Arc lamp)
Better light fastness compare to trapeze plus ®
#1 : Celtic cloth 126” black
#2 : Trapeze Plus ® Fast Black
#3 : Acrobat ® with Mira-S black
Dyeing behavior
Acrobat ® with Mira-S dyed darker
Clear and deep direction compare to normal polyester

5. Mira-S Fastness to dry heat (ISO 105-P01: 1993, 210℃)
Acrobat ® with Mira-S black Trapeze Plus ® Fast lack Celtic cloth 126” black
Fastness to washing (AATCC , 30℃ *5min)